Our smashingly fun Spark Rocks are a unique way to demonstrate that there is a real spark between the two of you!
Take the two rocks out of the bag and strike them together to see sparks within the stones!
Spark Rocks are pieces of quartz that have been tumbled until they are smooth and polished. When you strike the two pieces together, the internal electrons become charged and create sparks of light within the stones. The ability to create electric sparks is called triboluminescence.
The phenomenon is not fully understood, but appears to be caused by the separation and reunification of electrical charges. You know, just like how you feel electricity between you and your sweetie when you're reunited and the sparks begin to fly!
For best results: In a dark room, hold one piece of quartz firmly in each hand. Hold one piece still while you quickly strike it (like a flint - in a downward motion) with the other piece of quartz do this repeatedly to charge the stones. Once the stones are charged, continued to strike them together to see the sparks inside the stones. Be careful not to just hit them together or you will crack the quartz.
Each back contains two Spark Rocks and instructions. Bag colors vary. Bag measures approximately 2 inches wide x 3 inches tall. 100% Cool.